Bern Cold Weather Liner Upgrade Kit

Stay Warm on Cold Rides Without the Bulk Stay warm when temperatures drop with Bern's Cold Weather Bike Liner. Designed to keep you warm under your bike helmet without making it feel like you're adding tons of layers, this essential cold-weather upgrade extends your riding season into fall and early winter. Built to fit under any Bern summer helmet, the liner blends water and wind resistance with a breathable top panel and stretch Lycra for a snug, low-profile fit that doesn't compromise your helmet's feel or function. The Cold Weather Bike Liner is the ideal add-on for chilly rides, commutes, and cold-weather adventures. The fleece interior adds warmth without bulk, keeping you comfortable on brisk mornings and evening rides when temperatures drop. The slim, stretchy design fits comfortably under most Bern helmets without affecting fit, while the wind-resistant construction protects against cold air rushing through vents. Each liner comes with a drawstring helmet bag for easy storage and a sticker kit to add a touch of personality to your gear. Built to Last Designed specifically to fit under Bern summer helmets without adding excessive bulk or affecting helmet fit. Water and wind-resistant construction protects against cold air and light moisture during rides. Breathable top panel prevents overheating while maintaining warmth during active riding. Stretch Lycra fabric provides a snug, comfortable fit that moves with you. Fleece interior adds warmth without the bulk of traditional winter headwear. Low-profile design maintains your helmet's proper fit and doesn't interfere with adjustment systems. Slim and stretchy construction fits comfortably under most bike helmets. Perfect for fall rides, chilly commutes, and early winter cycling adventures. Includes drawstring helmet bag for convenient storage when not in use. Comes with sticker kit to personalize your gear. Available in S, M, and L sizes to match your helmet size. Ideal upgrade for extending your cycling season into colder months.